April’s journal club looked at four clinical questions regarding the diagnosis and expectant course of renal stones. Can the STONE score help you determine if your patient’s flank pain is due to a renal stone? Which is better to confirm your clinical suspicion of a renal stone, ultrasound or CT? How likely will your patient’s kidney stone pass spontaneously? What is the accuracy of hematuria to predict a renal stone in the patient with flank pain?